Tuesday, December 6, 2011

1112.0977 (Roy H. Østensen et al.)

Radial velocity monitoring of long period hot subdwarf + main sequence binaries with HERMES@Mercator    [PDF]

Roy H. Østensen, Hans Van Winckel
Population synthesis models predict that the majority of sdBs form through stable mass transfer leading to long period binaries. To date, about a hundred close short-period binaries with an sdB component have been found, but not a single long-period system has been established. We show preliminary results from our recent effort in determining orbits for a sample of long-period sdB systems using the HERMES spectrograph on the Mercator telescope.
View original: http://arxiv.org/abs/1112.0977

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